Dental-bib clamp



('N-oModel.)

" J. D. ENNES.

DENTAL BIB CLAMP.

No'. 410,083. Patented Aug. 27 1889.

A TTOR/VEY N. persas. mbmhognphu. wamnmn. ac.'

i UNITED4 l STATES PATENT JOHND. ENNES, OF NORFOLK, VIRGINIA.

DENTAL-B1B CLAMP.

SPECIFICATION forming part of Letters Patent No. 410,083, dated August27, 1889. g Application filed A ugust 31,1888. Serial No. 284,271.3..(No model.)

To a/ZZ whom, t may concern,.-

Be it known that I, JOHN D. ENNEs, a citi` zen of the United States, anda resident of Norfolk, in the county of Norfolk and State of Virginia,have invented certain new and useful Improvements in Clamps for DentalBibs; and I do declare the following to be a full, clear, and4 exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters oriigures of referencemarked thereon, which form a part of this specification.

Figure l of the drawings is a representation of my invention attached toa` bib. Fig. 2 is a perspective view of the clamp. Fig. 3 is ya sectionshowing the clamp closed, and Fig. 4 is a section showing the clampopen. j

The invention relates to improvements inclamps for dental bibs; and itconsists in the construction and novel arrangement of parts, ashereinafter set forth.

Referring by letter to the drawings, A designates the rubber-cloth bib,and B C are the clamps for holding the cloth as folded to form a pocketdesigned to catch the saliva and particles of decayed teeth.- The threeclamps are similar in construction, the lower one C, however, beingsomewhat longer than the upper ones and having secured to its upper endthe arms D, which extend laterally within the pocket to hold or spreadthe bib over the chest of the patient.

Describing the clamps more particularly, the letter Edesignates the mainor base plate of the clamp, having its lower edge a turned upward at anacute angle and its upper edge portion turned downward at an acuteangle,forming the spring bearing-bend b, and thence turned inward or towardthe body of the plate E, as indicated at c, terminating a short distancefrom said body-plate, so that an interval is left at d just suihcient toreceive the bend of the angular portion of the movable plate, so thatthe latter is held against the base-plate. The movable plate F is formedgage the bib or cloth when passed over the g edge a of the main plate.The upper edge of the plate F is bent laterally, as at g, and thenreversely at an acute angle, to provide the iiange h, forming anengagement angle at lo, which lies between the edge c ofthe main plateand its body. The edge h is made long enough to lie in the angle formedby the lia-nge c and the bend b, and to engage said bend, so that aclamping pressure is secured. Vhen, however, the clamp is opened for theremoval or insertion of the edge of a bib, the flange 71 moving upon thebearingbend b, takes a position at right angles thereto, as shown inFig. 4, so that the clamp is held open. The angles of `the bends ofthese plates extend in parallel lines, so that the movable plate F can`be adjusted laterally with reference to the plate E. The plate F isprovided usually with a ngerpiecercr to facilitate its adjustment.Strings or tapes 7L are attached to the upper clamps, in order that thebib may be secured properly on the patient.

It will be understood that'I` make no claim in this application tosubject-matter claimed in my application Serial N o. 295,943--viz., abase-clamp having a front lip and a slotted angular rear fold providedwith an edge apn proximating said base, a clamp-jaw having a V-for1nrear portion engaging said fold, a biting-lip to engage the lip of thebase, and a removable pin in said fold; also to a springbase having anangular rear fold and front clamping-lip, and alongitudinally-adjustable clamp-bar having a front lip and a V-form rearportion consisting of a shoulder and a spring-tongue, and also to aslotted angular fold of the base having aremovable pin extending throughsaid fold.

Having described my invention, what I claim 1s- 1. The combination, withthe movable clamp-plate F, having the angle-bend g and iiange h, and thepiece a', of the base clamp- 95 plate E, having the acuteangle bend band In testimony whereof I afx my signature 1o in presence of twoWitnesses.

JOHN D. ENNES.

Witnesses: l

AARON MILHADER, W. C. COBB.

